Sterlco ST500 Series Central Granulator - Manual (Page 52)

52
SETTINGS AND ADJUSTMENTS
SECTION 4-18
Drive Belt Replacement Or Adjustment
INSPECT THE DRIVE BELTS
Check the belts for cracks in the V-sections that ride in the pulley grooves as well as on the outside
surface of the belts. Also look for signs of excessive wear.
If replacement is necessary, continue with the steps that follow.
If it is not necessary to replace the belts, skip ahead to the step entitled Measure the Belt Span.
REMOVE THE BELTS
Loosen the motor mount locking screws.
Loosen the belt tension on the V-belts by turning the
adjusting screws on the motor base counterclockwise-
When the tension has been released sufficiently, slip the belts
over the pulley and remove them.
If replacement of any V-belt is necessary, all belts must be
replaced at the same time with a set of matched belts.
INSTALL THE MATCHED BELTS
Check the parts list to verify the part number of the correct
belts.
Slip the belts into the grooves, one-at-a-time, making sure
that the motor base has been adjusted enough to allow the
belts to be installed without danger of overstressing them by
forcing them over the edges of the V-grooves.
TIGHTEN THE BELT TENSION
Turn the adjusting screw on the adjustable motor base clockwise to
increase the distance of the motor shaft from the rotor sheave. When
the belts become snug, but not tight, stop the adjustment and use the
procedure that follows to set the belt tension.